What is FMEA with diagram?

Answer 1

FMEA Stands for Failure Mode and Effects Analysis

FMEA reviews a process step by step and asks, "What can go wrong?" That's the failure mode. It then asks what happens if it fails? Next, potential root causes of the failure are listed and the frequency of occurrence is determined. The ability to detect (or prevent) the failure is also reviewed for the current process.

These three criteria, Severity (S), Occurrence (O), and Detection (D), are rated on scales of 1 to 10, with a 1 representing only a minor incidence and 10 representing a catastrophic event for S, very frequent occurrence for O, or inability to detect the failure for D. The product of the three S*O*D ratings becomes the Risk Priority Number (RPN). Higher RPNs prioritize the need to eliminate the cause, reduce the frequency, or improve detection and prevention of the failure mode.

The second part of FMEA is to determine action steps to reduce the RPN for those items selected. Once actions are taken, the S*O*D ratings and the RPN are revised.

Most organizations develop rating scales specific to their processes, products, and services.